Journal-box jack



J. A. HOPE. JOURNAL BOX JACK.

l APPLICATION FILED OCT. 22, |919. 1,369,432.

Patented Feb. 22, 1921.

J. A. HOPE.

JOURNAL BOX JACK.

APPLicATmN FILED ocT. 22, 1919 Patented Feb. 22, 1921.

do/m fl. Hope.

linden/'orl JOHN. ALExANDERnorE, or MONTREAL, QUEBEC, CANADA.

f .ToUnNAL-Box JACK.

Be it known that l, doi-in A.; Horn. of the city oi Montreal, Province of Quebec, Dominion oi' Canada, a subject oi''the'ling of Great Britain, have invented certain new and' useful lmprovements iiiV Journal-BOX Jacks; and I do hereby declare that the "iol-Y lowing is a full, cleaig and exactdeseription thereof.

Journal box jacks as heretofore known have l lor the most j iazit takentwo forms, neither oiiwhi'ch is wholly satisfactory. The jaclrniost commonly employe'dis an ordinary lifting jack which mustbe seated upon a suitable support'onthe road bed beneath the journal box. Because oi" road or weather yconditions it is trequentlyyery difficult lto properly support the jack and'consequently much diliiculty is experienced in removing the wedge and brass i'rom the journal box.

Further it is necessary with such a jack that' some auxiliary nieansbe provided `ior holding the journal against upward movement with the box and this increases the diiiculty of using this jacle In the second i'orni of jack, which is not extensively used, the litting member is suspended from the wheel.`

'These jacks lio Wever, arev necessarily more or less complex and bulky in'tlieir construction and are slow of operation.' n 7 The object of the present invention is to provide a journal box jack which lwill be simple in its construction and operation and which can be quickly and Veasily placed in 'operative position. without regard 'to road hed or weather' conditions and which when in position will not interfere with the remoyal el the wedge and brass. Y

In the accompanying drawings Figure- 1 a side elevation ot a ack embodying my invention. sho-'wing the saine applied to a journal; vFig. is an end elevation otthe same; lli-g.. 3 is rear, or inner7 view `ofthe 'l'ulerum bloclgFig. Llis an end elevation ofthe iulcruniblocl; Fig. 5 is transverse sectional viewfoi" 'tulcriim block taken on`V the line 5 5 ot 6; Fig. G is an' outer, or front, elevation of the 'iulcrum block; Fig. 'T is a plan view of the u'lcrum block; Fig. 8 is a side elevation, partly in section, oi the lower end of the jack; Fig. 9 is a sectional view taken on the line 9-9ot Fig. il; Fig. l0 is a section taken on the line 10-10 of Fig. 8; Fig. 11 is' a planj'view of the lower Application 1ed'0ctober`22, 1919. 'Serial No.A 33'2,5166.

Speciicatioiiof Letters Patent. -Pnnted Feb. 192,1.

portionoil the j ack and the lifting member; and Fig. l2 is a perspective `detail View of one member' of the tulcrum block.

In carrying out my inventionl'providef a Y Vjack having a pai-t adaptedto extend into the outer end ciI the journal box, through the usualopeiiing therein,- andto rest upon the journal. Carried by this part is a lifting member which is arranged to be brought intoflii'ting engagement with the journal box, orrsome part of thecar .structure coniiected therewith. Suitable `means are vpro'- vided for actuating the llifting member to cause the box to be elevated relatively to the Y journal. 1inasmuch as the jack is supported whollyv from the journal it will be obvious that the condition ci` the road bed will in no way interfere with the use' of the jack.' and 'urtheritliat the weight of the load itself will hold the journalV against upward' movement with the box. Moreover, the construei tion is vsuch that the whole mechanism may ble arranged out ot alinement with the wedge and brass which are to be removed', and will not iii any way interfere with the removal ot theseparts. ln the accompanying drawings lf-have illustrated one embodiment of my iiiyention, which at the present time represents-the preferred forni of the jack, but

n itlwill be understood tliatthe jack may take various torms, wide-ly different Jfrom that here illustrated, without departing from the spirit of my invention.' l

rhe Vpreferred embodiment of my invention consists oi? a block adapted to lit on the free nd oi' the journal i'or 'the purpose oi i'ulciuming the main body oit the jack thereon. This "uleruiii` block is ol greater ywidth than the diameter oif the collar oi. the journal and consists oii two' sections Sand el. having"r overlapping portions 5 presenting a ilat inner face adapted to bear against the outer" tace of the journal, said block iaving a horizontal socket 6 extending from side to side withinwhich the jack proper is constructed and arranged to be viulcrumed.. Each ci' the sections is tapered downwardly as at .7 and is provided with a rearward projeetion 8 at each side edge.

ioo i A tions in orderrthat it may be adjusted to fit journals of different sizes, the overlapping portions being fastened together by bolts V91 passing through borings 92 and slots 93 in the respective sections. .The inner ends of these bolts are countersunk as at 94 to present a flat face for abutment with the journal end, and the opposite ends of the bolts project outwardly beyond vthe block and are screwthreaded to receive nuts 95 v inforced by a rib 12 the up erend of which is tapered off as at 13-to a ord ample clearance for the removal of the wedge. and journal bearing, the extreme end being rounded foi as at 14 and seated in the socket 6 of the block. The lower end of the body mem-- ber is curved to extend beneath the journal box and is provided/with an enlargement p15 containing a chamber 16.

a worm 21. This worm is Jformed integrally The' means for exerting jackingv force upon the underside of the journal box is carried by this lower end and consists of a jack screw 17 projecting upwardly through the chamber in aline intersecting a point in close proximity to the point of fulcrum ofl the jack and having a longitudinal feather-way 18. Upon this screw and vlocated within the chamber is a combined worm wheel and nut 19 which is internally screw-threaded for engagement vwith the threads of the jack screw while its periphery is gouged out'as at 20 to intermesh with with a stub shaft 22 journaled in a transversel boring 23 in position to intermesh with the combined worm wheel andV nut. In order.. to prevent displacement of the nut from its chamber and convert the torque of the nut into axial movement of the jack screw, a lring 211 encircling the jack screw closes the upper end of the chamber and is provided with an inwardly projecting it'eather 25 which registers with the featherway inthe screw. The ring is mounted rigidly in place by means of a radial `extension 26 seated in groove 27 in the adjacent portion of the body and held in place by a screwv 28. Ball races 30 are provided for both the combinedy worm wheel and nut and worm. f

In order to permitof easy assembly and inspection of the parts the boring 23 is oiV increased diameter as` at 31 .to permit oit' the insertion of the worm, the endvof the widenedvportion being closed by a cap 32. vThis cap constitutes a bearing for one end of the shaft 22 V.the'opposite end of the shaft proone of its ends in engagement with the teeth of the ratchet wheel and anoperating y handle 40. Theshait 22 isfextended outwardly beyond the ratchet wheel 34: and has mounted thereon a knob 41. `The purpose of this knob is to provide means for obtaining a quick manual feed of the jack screw until it comes into engagement with .the` under side ofthe journal box at which point the handle is used. f. n f p,

In order to Vlubricate the jack screw and the parts in intimateintermeshing relation therewith, a cup 50 is screwed into the lower. end of the jack directly beneath the chamber 16 and in communication therewith and this l cup is filled with lubricant and adaptedY to To prevent tne jack screw from slippingV laterally when inengagement with the jour;-

nal box, its upper end is provided withl two y shallow grooves 52 extending at right angles to yeach other and present-ing flatteeth .these teeth engaging thejbox and acting as antiskids. The same result may be obtained, however,rby serrating the'top otV the jack screw. f

To provide means for .readily carrying the jack the ribr12 is provided with ahand hole 75. It is to be distinctly understood that while I describe my improved Vjack as adapted to journal boxes,jit may be equally well adapted to other purposes and although the embodiment illustrated `is the one I prelfer to use for journal box work, yet ifYV def,

sired the general construction may be varied, without departing -from the spirit of my invention so long as it is hung from and tulcrumed on the tree end lot the journal.

- Opemtz'mt.

lansing my improved jack the door of the journal box is swung open and the ful crum block 3 iitted over the ireejend oit the journal. The cnd`14 ot the jack is then tulcrumed in this block in position with its op'-V lposite end extending beneath the underside of the journal box. The jack screw is then n fed up into engagement with the box by means oi' the knob 41. At this point jacking is effected by `means of the handle 40 which is oscillated until the box is moved upwardly to an extent suiliciently to release the wedge and bearing and to permit theseparts to be movedy outwardly. The wedge and bearing are then removed and replaced, after which the ratchet pawl 36 is disengaged from the ratchet wheel and the box returned to its normal position. The'removal of the jack A tom ofthe box in linewith the fulcrum point.-

3. A journal box jack consisting of a fulcrum member adaptedto fit on the lend of the journal, a unitary body member one 'end of which is constructed and arranged to kfulcrum inv said -fu'lcrum' member and vmeans carried 'by the other "end'fof said member and v constructed and arranged to bear `upon the underside of the journal box for the purpose of exerting a 'jacking force thereon.

4. A journ-albox jack consisting of a fulcrum block adapted to fit on to the journal, said 'block having a VsocketV therein, a body of hook form the upper end of which is' constructed and arranged to be fulcrumed in said socket with its lower lend extending beneath the' journal box, means carried by'said lower` end forexerting jacking force upon the underside of the journal box said means consisting :of a jack screw, a combined worm wheel "and 'nut rencircling said jack screw, means for preventing rotation of said jack screw and disp'lacementl vof the combined worm wheel Vafiml nut, a worm wheel in interme'shi'ng relation with'said combined worm Wheel and nut, and 'manually operated' means c connectedv to said lworm for v'rotating the same.

' 5. A journal box jack for assisting in the removal of the wedge journal bearing, said ljack being constructed and arranged to extend through the outer end wallof the journal box and to be suspended from the journal and being wholly located below the Vhorizontal lplaneof the wedge -for the purpose of presenting-anunobstructed path `for the removal of the" same; y

k6. A journal box yjack consisting of a fulcrum block adapted tov 'fit 'on tothe journal, said block having a socket therein having rearward `projections ada'pte'dto straddle the journal, a body of hook form the upper end of which is constructed andairange'd to be fulcrumed in said socket withl its lower end extending 'beneaththe journal box, said body member being strengthened by a rib formed integrally therewith and having a hand-hole `for carrying the jack and a chamber at its lower end, means carried by said lower end for exerting jacking force upon the underside oi' the journal box, said means consisting or' a jack screw the axial plane of which intersects a point in close proximity to the point 4oi: ulc'rum of the jack, said jack screw having a longitudinal feather-way, a

combined wormwheel and nut located within lsaid chamber' and encircling the jack y Y screw, means for preventing displacement of the nut and converting the torque of the nut into axial movementof the jack screw said means consisting of a ring encircling saidscre'w and rigidly secured to the body of the jack Yand lhaving' a feather registering with said feather-way; a boring within the body of the jack adjacent said jack screwa portionv of said boring being of increased diameter, aremovable-cap closing oneend of said boring, a stub shaft jmirnaled within said boring, a' worm wheel rigidly mounted upon said shaft, the latter projecting 'out- Ward-1y through th'e reduced end of said bor ing, ratchet means mounted `upon said outwardly extending end and a manually operated knob mounted upon the extreme vend of the outwardly projecting portion of the shaft for the purpose of obtaining a quick Jfeed of the jack screw, and means for lubriveating the jack screw and parts in interv meshing rel-ation therewith said `r'ne'ans'c'cnsisting of a cup carried by the lower end of the jack and constructed and arranged to receive the lower end of the jack screw.

7. A journal box "ack having a ulcrum mem-ber adapted to journal said fulcrum member being adjustable for the purpose of fttingjournals of different sizes, said jack being constructed and arranged to' exert jacking" `force upon the bottom of the' box in line with the fulcrum point.

8. A 1jack of the character described, comi prising apart constructedjan'd arranged to extend through the outer end Wall of al jonrr nal box and to be ts`1`1s`pended from 'the journal, a second part connected with the first mentioned part for `movement relatively thereto and arranged to be brought into lifting engagement with the part which is to v be raised, and means for imparting lifting movementfto the last mentioned part.

9, A jack ofthe characterr described, comprising a ,part constructed and 'arrange/dito `extend 'through vthe outer end wall" of a journal box and to be supported solely by the journal, a second. part connected with the first mentioned part for movement rela# tively thereto and *arranged "to be brought into lifting engagement vwith the underside of the journal box, and means `for imparting comprising a body member having at one Vend a part to extend through the opening in the outer end of a journal box and to be t on to 'the end of they supported by they journal and having at its other end alifting member to `engage the journal box, and meansy for .actuating said lifting member.

11; VA jack of the character, described",

comprising a C-shapedbody member having its upper end arranged to enter a journal box and to be supported bythe journal and having its lower end extending beneath said journal box, aflifting member carried by said lowerv end of said bodymember, and

`means. for actuating said lifting member.

12. 'A jackv of the character described,

comprising a part constructed and arranged .to extend through the outer lend wall of a journal box and to be suspendedffrom the journal, and an operable lifting member Y carried by said part and arranged to engage ,Y member, and means to actuatesaid lifting member.

-15. In a jack of the character described, a device to be supported by the outer end of a'journal, a body member supported by said vdeviceand constructed and arranged to extendl through the opening in the outer end Wall of `the journal ,box` a lifting member carried by said body member,V and means to actuate said'lifting member. .l

16. In a 'jack of the character described,

' a deviceftobe supported bythe outer end lof a journal, a bodymember pivotally supported on said device and constructed and arranged to extend through the opening 1n the outer end wall of the journal box, a lifting member carried by said body, and means to actuate-said lifting member. p p e 4 17 In a jack ofthe characterdescribed, adevice to be supported by ajournal, said device being adjustable to accommodate it to journals'of different sizes, a body member supported by said device, a lifting member carried by saidl body member, and meansto actuate saidlifting member.

18. In a jack ofthe character described, a hook shaped part to engage over the flanged end of .a journal, a body portion supported by said hook shaped part and arj ranged to extend through the outer endwall of the journal box., a lifting member carried two witnesses.

by said body portion, and means for actuating said lifting member.

V19. In a jack of the character described, i

a body member, means lfor supporting said body member on a journal, sald means comprising two journal engaging parts adjust 'l able relatively `one to the other, a liftingmember carriedl by said body-member, andv .means to .aetuatesaidlifting member'. Y

20. Ina jack of the character described, r

a body member having apart constructed and arranged.' to extend through the opening in the outer' endi of a journal box'and to be supported'by the journal and .havingjane` other'v "part arranged"y to be positioned beneath theY journal box, a screw kthreaded lift,l A

p in the 'outer endof l'the j-ourn'albox and to be supported by the journal and 'having another part arrangedto be positioned beneath the journal. box, a nut rotatably mounted in the last mentioned part of said i body member and held against axial movement relatively thereto, a lifting member rotating said nut.

22. In a jack ofthe character described,

supported-bythe journal, and having an-V other part arrangedVV to be positioned beneathV the journal box, a e .nut rotatably mounted in the lastimentioned part of said .body member and held against axial movement relatively "thereto, said nutk having teeth Von the outer periphery thereof, a Worm .mounted insaidlast mentioned partof said body member andA meshing with the teeth on said nut, means for rotating said worm, andV a Ilifting member screw threaded in said nut.

23. In a jack Vof the character described, a hook-shaped part to engage u'over the flanged end of a journal,.ia part separate kfrom and supported by said hookshaped part, andanoperable load-engaging member connected with the last mentioned part and arranged to engage the part to be lifted.

.. {Intestimony whereof vI haver signed, my

name to this specification inthe presence of y JOHNV ALEXANDER HOPE. l Witnesses: Y if GORDON Gr.` COOKE, WILLIAM J. C. .Hnwnrsorn` screw threaded in to said nut, and meansfor l llO 

